I have never used a knife with saw teeth that was very good. I always carried a Bahco or Silky folding saw.
The folding saws often weigh light enough to not care about carrying them.
Exactly
I normally don't carry a folding saw unless bow hunting or in my quad.
However I find the saw on the Swiss army knife is big enough for making notches in wood.
I always have a saw in the truck and when camping.